Sudden Impact is a 1983 American crime thriller and the fourth film in the Dirty Harry series, directed by and starring Clint Eastwood (making it the only Dirty Harry film to be directed by Eastwood himself). The film is notable for the catchphrase, 'Go ahead, make my day', which is uttered by Clint Eastwood's character in the beginning of the film. Artist Jennifer Spencer and her sister were raped by a group of young men 10 years ago, after being betrayed by a female friend, Ray Parkins. The brutal rape left Jennifer's sister permanently catatonic. Spencer seeks revenge, and begins by killing George Wilburn with two shots from a .38 snubnosed revolver, one in the groin and one in the head. She leaves San Francisco for the town of San Paulo because of the police investigation, and...'